RFR: JDK-8077419: Launcher mapfile fails linking with SS12u4

[David Holmes]

Hi Erik,

On 13/04/2015 11:25 PM, Erik Joelsson wrote:
> Hello,
>
> When building JDK 9 with Solaris Studio 12u4, linking of unpack200 and
> the java launchers fails due to symbols not being exported. A typical
> error message looks like this:
>
> Undefined first referenced
>   symbol in file
> __environ_lock
> /net/sthserver02/share/sundevtools/devtools/i586/devkit/SS12u4-Solaris11u1/SS12u4-slim/lib/compilers/amd64/crt1x.o
> (symbol has no version assigned)
>
> The fix seems to be to add these symbols to the mapfiles.

I'm perplexed - what are these symbols and why are we exporting them ?? 
I see we already had __environ_lock on x86, but I can't actually find 
these in our source code (environ_lock, longdouble_used).

David

> I also noted that the format of the make dependency files generated by
> the compiler is slightly different which required a small adjustment to
> our rewriting logic for them to remove leading whitespace.
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8077419
> Webrev: http://cr.openjdk.java.net/~erikj/8077419/webrev.01/
>
> /Erik